Bulletin PM briefing: Punishing heatwave grips UK and dozens injured in bus crash

Hundreds of schools close as heatwave and thunderstorms cause major disruption.

Starmer defies critics to publish defence plan before Nato summit.

‘Hurt himself very badly’: How Trump reacted to Keir Starmer’s resignation.

Dozens believed injured in bus crash on major Welsh road.

Peter Murrell, former SNP chief, jailed for five years for embezzling £400,000.